沸石
结晶度
化学
模板
选择性
甲醇
化学工程
催化作用
纳米技术
无机化学
有机化学
材料科学
结晶学
工程类
作者
Yuhui Ma,Xiaomin Tang,Junyi Hu,Yanhang Ma,Wei Chen,Zhiqiang Liu,Shichao Han,Xu Cheng,Qinming Wu,Anmin Zheng,Longfeng Zhu,Xiangju Meng,Feng‐Shou Xiao
摘要
Zeolite nanosheets with excellent mass transfer are attractive, but their successful syntheses are normally resulted from a huge number of experiments. Here, we show the design of a small organic template for the synthesis of self-pillared pentasil (SPP) zeolite nanosheets from theoretical calculations in interaction energies between organic templates and pentasil zeolite skeletons. As expected, the SPP zeolite nanosheets with the thickness at 10-20 nm have been synthesized successfully. Characterizations show that the SPP zeolite nanosheets with about 90% MFI and 10% MEL structures have good crystallinity, the house-of-card morphology, large surface area, and fully four-coordinated aluminum species. More importantly, methanol-to-propylene tests show that the SPP zeolite nanosheets exhibit much higher propylene selectivity and longer reaction lifetime than conventional ZSM-5 zeolite. These results offer a good opportunity to develop highly efficient zeolite catalysts in the future.
科研通智能强力驱动
Strongly Powered by AbleSci AI